Type-writing machine.



Patented Ap1.22,1919.

14 SHEETS-SHEET l.

O, THIEME.

TYPE WRITING MACHINE.

APPUCATION FILED GCT. 9. $916,

OfIHIEME.

TYPE WRITING MACHINE.

, APPLICATION FILED ocr. 9, |916.

l 3()15335 Patented Apr. 22, 1919.

14 SHEETS-SHEET 2.

www@ om T/T n* 0. THIEME.

TYPE WRITING MACHINE.

APPLICATION FILED ocT.9,1916.

Patented Apr. i353, 191.2).

14 SHETS- aHtET 3 caffwnuw'umo. wuumamn. u. c

0. THIEME.

TYPE WRITING MACHINE. APPLICATION FILED ocT.9.1916.

Patented Apr. 22, 1919.

I4 SHEETS-SHEET 4.

4@.wHlErI/IE. TYPE WIIITING MACHINE. APPLICATION FILED 0CT.9. 1916.

Patented Apr. 22, 1919.

I4 SHEETS-SHEET 5.

0. THIEME.

TYPE WRITING MACHINE.

APPLICATION FILED ocr. 9. II.

Patented Apr. 22, 1919.

14 SHEETS--SHEET 6.

fff/

O. THIEME.

TYPE WRITING MACHINE,

APPLICATION FILED OCT. UI i916.

Patented Apr. 22, 1919.

I4 SHEETS-SHEET I.

0. THIEME.

TYPE wRmNG MACHINE.

APPLICATION FILED OCT. 9.191-6. 1,301,335, v Patented Apr. 22, 1919.

I4 SHEETS-SHEET 8.

0, THIEME.

TYPE WRITING` MACHINE.

APPLICATION FILED' OCT. 9| I9`I5. y 1,301,335, Patented Apr. 2 2, 1919.y I4 SHEETS-SHEET 9 'LILI ILI (L THIEME.

TYPE WRTING MACHINE.

APPUcATloN FILED 0cT.9.1916.

Patented Apr. 22,1919.

i4 SHEETS-SHEET l0.

0. THIEME.

TYPE WRITING MACHINE.

I APPLxYcATloN FILED 012112.19115. 1,301,335, Patented Apr. 22, 1919.

14 SHEETS-SHEET Il.

0. THIEME.

IYPE WRITING MACHINE.

APPLICATION FILED OCT. 9, |916.

l', 30 1 3 3 5.. Patented Apr. 22, 19H).

14 SHEETS-SHEET I2.

0. THIEME.

TYPE WRITING MACHINE.

APPLICATION man ocT.9.1916.

1,301,335. Y Patented Apr. 22,1919.

I4 SHEETS-SHEET I3.

o. THIEME.

TYPE WRiTiNG MACHINE.

PPLICATION FILED OCT. 9| 1916. l

Patentd Apr. 22,1919.

UNITED sTATEs PATENT oEEIcE.

OTTO THIEME, OF'ST. LOUIS, MISSOURI, ASSIGNOR T0 MOON-HOPKINS BILLINGMACHINE 7' COMPANY, OFST. LOUIS,` MISSOURI, A CORPORATION OF MISSOURI;

TYPE-WRITING MACHINE.

Specification of Letters Patent.

Patented Apr. `22, 1919.

Application filed October 9, 1916. Serial No. 124,659.

in theiartto which it appertains to make' and use the same,referel'ice'being had to the accompanying` drawings, forming part ofythis specificati-n.

This invention'relates to certain improvements intypewriting machines,and relates primarilytofkey-operated machines ofthe type bar type.

The 'general object which I have in View is the provision of atypewriting machine which shall `constitute a part of a machine nowccmmonlyknown as a billing machine, and which is characterized by acoperative arrangement of typewriting and computing mechanism wherebyboth the 'mechanically operated printing.mechanism` of thecomputingiuachine and the manually operated printingmechanism of thetypewriting machine maybe operatedto print upon a sheet of papercarriedby a carriage which is com'- mon to the` twoV mechanisms, soythat the legends printed vby the respective mechanisms mayl belassociated With one another at the selection'of the operator in any` ofthe numerous various relationships incident to variousmethodsofbookkeeping, billing, invoicing, and 'other commercial recording.

The more definite object which I have in view is thev provision of animproved typewriting machine construction which is designed forAassociation withk the "computing mechanism as` above explained, in suchfashion that the printing pointsof both mechanisms maybe always visibleto the operator, and iin addition thereto. that the carriage be visiblethroughout its entire eX- tent along theprinting line, so that therelationshi'pvof all legends on the line` may be `ascertainable at aglance without the manipulation of the carriage or other parts ofthemechanism.' i

Whilev the objects above designated are not original lwith me, and myinvention, therefore, does notreside in the provision et' a combinedcomputing and typewriting machine, or in the provision of such 'amachine having ai visible printing "line, the structure by which I haveattained these'objects embodies manynovel featuresoflconstruction, andthe equipment and organization of the machine for its"l coperativefunction with the computing machine, particularly with respect to'movement and manipulation of thepaper 'carria e, involve the provisionof various novehigeatures of equipment.

The salient objects of the several novel features of constructionwhiclr`I claim as my invention, wil-l be indicated as each featurcisdescribed, while other' objectswill be uobvious'upon an understanding ofthe device.

The accompanying drawings illustrate'an embodiment of my improvements-Figure 1 being a longitudinal sectional view taken substantially on the'median line of the machine;

Fig. 2 a rear View;

Fig. 3a rear view of the typel basket;

Fig. 4 a top view of the type basket and certain associated parts Fig. adetail illustrating a side' elevation partly in section of thetypebasket mounting and type bar operating* mechanism;

Fig G a similar view with the type basket in shifted position Fig. 7 adetail illustrating the type basket shifting mechanism;

F ig.` 8 a perspective illustrating the ribbon vibrating mechanism Fig.9 a front elevation villustrat-ing the ribbon vibrating and feedingmechanism;

Fig. 10 a longitudinal section of the 'same substantially on line 10-10of Fig. 2', the same showing particularly the mechanism for vibratingand feeding the ribbon through operation of the computing' machine;

Fig. 11 a longitudinal section substantially online ll-llof Fig. 2,andillustrating particularly themechanism' for vibrating and feeding 'the"ribbon through operation of the typewritingmechanism; l

Fig. 12 a top 'view'of vthe ribbon feeding mechanism designed toillustrate particularly the arrangement for shiftinglthe direction offeed of `the'ribbon;

Fig. 13 a detail of the same mechanism;

Fig. 14 likewise a detail of the same mechanism;

Fig. 15 a side elevation of the carriage escapement mechanism;

Fig. 16 a top View of the same;

Fig. 16a a detail of a portion of the escapement shaft.

In my copending application filed August 1, 1916, Serial No. 112,534, Ihave shown the billing machine of which the improvements hereindescribed constitute a part, and it will be-observed from the disclosurein that application, that the printing members of the computing machineare in the form of segments orv arms which reach forwardly throughportions of the typewriter mechanism below the paper carriage, and aremovable into printing position relative to the platen above the typebars of the typewriter.

By virtue of this arrangement the printing from the computing machine aswell as the writing from the typewriter, may all be disposed on the sameprinting line which is visible to the operator throughout its length.This relationship of parts necessitates a novel design of typewritingmechanism, the various features of which will nondv be described.

The type basket cmd operating mechanisms.

The typewriters is of the type bar kind in which the type bars arecarried in a shiftable frame so that they may be moved relative to thecarriage to afford printingfrom a selectedone of a plurality of types onthe bar. The type basket construction will be best understood byreference to Figs. 1 to 5 inelusive.

Let numeral 1 designate generally the frame of the machine, in which ismounted a cross member 2 extending from side to side thereof andproviding means of support and attachment for various parts ofthemechanism. This cross member includes upstanding bearing portions 4in which is journaled al rock shaft 5. This shaft has a portion 5arwhich is displaced forwardly off of the axis of the shafts journals,somewhat after the fashion of a crank shaft. The basket frame member 6is disposed over the offset portion 5a, and said frame has atransversely extending portion 6a from the extremities of which dependtrunnion-like members 7 which aline with the extremities of the offsetportion 5, and carry trunnion screws 8 which engage in countersunkbearings in the ends of the shaft portionfa to afford a swinging orpivotal mounting of the frame upon the rock shaft. The frame haslaterally disposed arm portions 6b at its extremities and intermediatethem the medial arm portions 6 likewise extending upwardly and offsetforwardly atits upper portion. The medial arm portion 6 supports thetype bar pivot plate or ment 9 which is a semicircular casting with itsarcuate marginal portion 9a of considerable thickness to'form themounting for the type bar pivot rod and the universal bar. The segmenthas a medial aperture indicated at A through which the type carryingmembers of the computing machine operate.

Extending forwardly from the extremities of the type bar pivot plate arebracket members 10 which at their forward ends support the transverselyextending arcuate type bar support 11. The type bar pivot plate 9 isprovided with two concentrically arranged rearwardly opening arcuategrooves, one for the reception of the universal bar 12. and the otherfor the reception of the type bar pivot rod 14. The thickened portion 9aof the type bar pivot plate is also Yprovided with the radially disposedslots 15, in each of which is mounted a type bar 16 which is pivotallysupported on the pivot rod 14. At their outer extremities the type barsare supported in normal position by the arcuate support 11 upon whichthey fall kunder gravity. Just in front of 'its pivotal axis, each typebar has a shoulder portion 16a which is designed to make contact withthe forward edge of the universal bar 12 when the type bar is swung toprinting position. Extending rearwardly from its pivot, each type barhas a slotted arm 17 from which depends a pivoted link 18 havingoperative engagement with the arm 17 by means of a pin 18a which ridesin the slot of the arm. These links 18 are pivotally supported on apivotrod 19 which in turn is supported at its extremities on arms 20fo-rmed on cross member 2. As best seen in Fig. 5, the engagement oflinks 18with pivot rod 19 is by means of a slot in the dependingextremity of each link. which form of mounting permits of verticalmovement of the link relative to the pivot rod while retaining thepivotal relationship. Mounted on the forwardly projecting brackets 21which are carried on frame 6 is a shifting rod 22, with which each link1S has engagement by means of an arcuate slot, the disposal of'which issuch as to permit forward and rearward rocking movement of the linkrelative to the rod when the link is swung on the fulcruin afforded bypivot rod 19, but to retain the link against vertical movement relativeto the shifting rod 22.

Tn association with each of the links 18 is a key lever 24 pivoted at 25on the cro-ss member 2 and drawn to normal position by spring 26.Associated with each key lever is' an operating lever 27 of bell crankform, pivoted on the rod 19, and having a for` wardly extending slottedarm 27a which engages a stud 28 extending laterally from the associatedkey lever, and a rearwardly extending arm 27b carrying a stud 29 whichrides in a vertical slot in the upper portion of the' associated link1.?.s Upon. depression of engagement with theV lug 49 and release of thekey lever 24, operating lever 27 isthe set of type which is broughttoftheprinting line on the printingi operation; Adjacent-the left handside ofethe mach-ine ay crank 30 yis-carriedvon shaft ',5,`extendingforwardly and carrying at its= outerwextremityy a roller 31:? Onrod'19is `mounted a shifting lever=32` havingy itsv rearwardly extendingarm formed tocoperate withthe roller 31,1 and' having-its forwardlyextend ing armformed: to= coperate with a similar roller y34 mounted onone sidefof the` shift key leverB. When the shift 'keylever fisdepressed, shifting lever 32will berocked', raising its rearwardendfwh-ich throws crank 30 upwardly and` 'rotates' shaft F5. Thisoperation raises theoifset portion' 5"*"ofithe shaft, lifting frame 6and all" partscarried thereby, including' the' type bars. Thisdisposesthe wtypevbars in such relationship to they 'platen' thatV thelower liner of typef on ythe bars will be swungfto the printing line inthe printing operation. The type basket is returned tonormal position bygravity, a buffer spring 36 -coperating with crank 30 to ease thefall-of theifbasket.

As a. means for shifting andsimultaneously lockingthe `type basket inshifted'position, I provide the'shift lockwhich` in# cludesfthekey-operated'bell leveri37 mountL ed on .the frame.r Arms38and39conjoined bythe sleeve; 40 whichis pivotedony a pin 41,v form abeIl-crankWith the arnr38cooperating with the rearward extremityofshifting lever32, andthe arm .39voperatively connected to the bell lever37 by link 42. A spring44 'tends to retain the partsin normal position,:and the depression of shiftdock key 45`f`against the tendency of spring`44, will resultin the rockingof shifting lever 321toVv raisethetypebasket as above described. Upon this operation, the lockinglevery 46 pivotedto the4 frame at 47 and having'a hooked' rearward end48, willl fall into engagement' with a lug 49 on the arm 39, lockingsaid arm in its forward position and maintaining the type basket in anelevated position. The lock is released by depression ofthe? shift Vkeylever which carries a stud 50 which in turn coperates with the beveledextremity of the arm 51`fof the 'locking lever to swing the lockingleverout the lparts*toipermit the fall of the type basket'.

InFig. 6 is shown there'lationship of the lva'riiusA type Ibar operatingparts'rwhe'nfth type basket:` is in `its elevated or shifted positiroin`By comparison of this figure with Fi'g'2l5, it will be observed thatupon the ele vationvofr the' typeI basket, the links :18" areallfiraised vertically, by virtueof their eugagement with the shiftingrod` 22, and as permitted by the slotted connection with the lugs 29 andthe pivot rod 19. Key levers 24 and operating` levers27 retain theiroriginal position,.and the latter, of course, maintain their operativeengagement with links 18, by

virtue `ofthe slotv and pin arrangement. The printing operation with thetype basket in the shifted position is the same as with the typefbasketin normal position, the depression ofthe key levers rocking theoperating leversV 27v forwardly to swing the links 18 and the'.v typebars. It will be understood, ofcourse, that inasmuch as the type barsare arranged in an arcuate disposal, so that those at the extremities ofthe basket are considerably higher than those in the middle, thenecessary variation in the length of the vertical arms of the links 18will be madeto afford connection with the-type bars, which latter havetheir rear arms 17 of uniformy length.

By virtueof the features of construction just i described, it will beseen that the convenience `and economy of a single keyboard mayfbemaintained while the proper definite printing line relationship ofplaten and printing mechanism of the computingV machine is alwayspreserved. Furthermore, theftype operating mechanism` gives a uniform-lylightltouch and rapid action.

The carr'r/r/e campement mechanism.

This mechanism will: be described with particular reference to Figs. 5,15, and 1G.

Referring'rst to Fig. 1, however, it will be Vunderstood that thecarriage is made `up of `sideframes 50which are connected by trackba1s51, tabulator bar 52, and other longtudinally extending members, andin which side iframes are mounted the platen 54 and the portionsassociatedV therewith for handlingthe paper. The lower track bar 51rides on rollers 55 mounted on the frame, andthe" upper track bar onballs 56, which are carried in a ball race on the frame. The carriage'isequipped with a longitudinal rack 57 with which meshes a pinion 58 whichis carried at the upper end of the escapement shaft 59V which isflexibly journaled` in a bracket 60. Escapement shaft 59 carries theescapement or ratchet wlieel `61. A vibratingshaft 62 is mounted on theframe members 64, and carries the pallet mechanism G5 which cooperateswith the escapem-ent wheelY 61 to permit its step byv Vstep `escapementmovement under the tension imparted to the carriage by the conveiitional spring. drum arrangement 63 (see `I,?ig32.)f FAfstpringGftends to maintain' the shaft 62 and its carried elements in normalposition and engagement with the escapement wheel, and a lever arm 67depending from the shaft 62 affords means whereby the latter may berocked to vibrate the pallets to permit the escapement movement. As willbe seen best in Figs. 3 and il, the lat eral arm Gh of the type basketcarries vertical rock shafts 68. Adjacent their lower extremities thesevertical rock shafts vcarry arms 69 which are pivotally connected at69ain front of a line drawn from one shaft to the other, so that saidarms form a sort of toggle connection whereby when one shaft is rockedon its axis the rocking movement will be transmitted-to the other shaft.Adjacent their upper extremities the shafts 68 carry inwardly presentedarms 70, and at the inner extremityV of each of said arms 70 is carrieda pivot block 71 (see Fig. 5). A yoke member 72 'pivotally supports thepivot block 71, and in turn is pivoted to a. connecting member 74. Tothis connecting member 74 is attached the universal bar 12, connectionbetween the two being made, if desired, by means of an integral earportion 12a on the universal bar being attached by screws to theConnecting member 711. Extending rearwardly from the right hand rockshaft 68 is an arm or lever 75, which is maintained under tension to theleft by a spring 76. This arm 75 extends rearwardly into cooperativeassociation with the vibrating arm 67.

' It has been explained above how the operation of a type bar mpves theuniversal bar 12 rearwardly. This* movement of the universal bar, byvirtue of the togglelike or free double-jointed form of connectionthrough connecting member 74C, yoke 72 and pivot block 71, will swingthe arms 70 rearwardly, thus rocking the vertical rock shafts 68. Thisrocking movement will swing arm 75 outwardly or to the right, in whichmovement it will rock lever arm 67. VThis, of course, will rockvibrating shaft 62 .and

vmanipulate the escapement pallets to release the escapement wheel andpermitthe first half-step movement of the carriage. yWhen the pressureof the type bar is removed from the universal bar, the latter isretracted to normal position, and the lever 75 swungleftwardly,permitting the return of the levery arm 67 and vibratingshaft to permit the full escapement of the carriage and complete theletter-spacing operation. There is sufficient room for lost motionbetween the arm 75 and lever varm 67 to allow for the printing of theletter before the escapement pallets receive their first movement. Thismounting of the escapement bar on arms from the vertical rock shafts 68,and the toggle connection between these rock shafts by virtue of thelevers 69, maintains the universal bar in alinement throughout itslength at al1- times and insures bodily right-line movement no matter bywhat type bar it may be operated. This insures uniformity of touch onall of the key levers.

Escapement from thespace bar is accomplished through the connectionsdisclosed in Fig. 15 wherein the numeral 73 designates the spacebar'lever, and 77 designates a rock bar extending across the machineover the key levers and pivoted on the opposite side frames at 77a. Thepart of rock bar 77 intermediate its terminal extremities is oiset andon either side of its middle is connected to one of the space bar leversby means of short lugs 78 which engage above and below a projection 79extending from the rock bar'77. Goaxially with its pivots 77a the rockbar carries at its right'end an arm 8O which has pin connection with aslotted link 81. This link in turn is pivotally connected to a laterallyextending arm 82 carried by the right hand rock shaft 68. When the spacebar is depressed, the lever 76 will be rocked downwardly, the rock bar77 rocked on its pivots so as to swing the lever forwardly, which inturn, through the link and lever connection, rocks the shaft 68 so as toeffect the escap'ement operation as above described; The slot connectionbetween lever 80 and llink 81 is for the purpose of permitting theforward movement of the latter when the rock shaft 68 is operated from akey lever, during which operation, of course, the lever 80 isstationary.

By virtue of the mechanisms just above described, a positive operationof the ycarriage escapement is attained both from the operation ofprinting keys and the-spacebar. Rock shaft 68 being carried by theframe'of the type basket, insures uniformity of opera'- tion in bothprinting positions of the type basket. Y

The vn'bbbn manipulating mechanism. p

is made for vibration of the ribbon to andl from the printing line uponthe printing 'operation of either mechanism, longitudinal feed of theribbon upon operation of either mechanism in the printing operation,automatic reversal in the direction of feed of the ribbon, and a meansfor changing'the ribbon vibrating operation so that the printing` may bedone selectively from either color zone, of. a bichrome ribbon. yTheconstruction of the ribbon manipulating mechanism will be understood byreference to Figs. 8 to 14 in-4 clusive. Referring first to Fig. 9, itwill be observed that spool shafts 90 are journaled in brackets 91, oneat each side of the ma-y chine, said shafts being vertically disposedand having their upper extremities extending above the cover plate ofthe machine, where they support thespools 94 at a level slightly belowthe printing line. The ribbon 95 passes from one spool to the kotheralong the front of the paper carriage just below the printingline,'being operatively engaged by vibrating guides 96, one at each sideof the printing areaA These vibrating guides are carried on slideways 97which are supportedon the trame cover plate, the connection being suchthat the `guides have ver tical sliding moven'lentthereon. Dependingbracket members 98 afford supports for the pivotal mounting of thevibratinglevers 99 and 99; the former having slot and pin connectionwith the left hand vibrating guide' 96 andtheA latter having slot andpin connection with the right hand guide 96. The mounting of' the4vibrating levers on the brackets 98 is alsoby means of arslot and pinconnection, so that the levers may be shifted longitudinally withreference to the brackets and the vibrating guides. The fulcrum pin y ofthe lever 99 is carried on a. longitudi nally movable link 100, whilethe fulcrum pin 1/ of the vibrating lever 99 is carried on alongitudinally shiftable link 101. VA cam plate 102 is longitudinallyshiftable by operation of the ribbon shift key which is disposed in thekeyboard, the lever ofy which is `shown at 104, and which is connectedbya link 105 to a bell lever 106 pivoted at 106iL and having its other armconnected to the cam plate 102. The cam plate is provided with adiagonally inclined cam slot 107 in which yoperates a pin 108 carried byshiftable link 100. Cam plate 102l hasv a second diagonallyinclined camslot 109 in which operates a pin 110 carried by shiftablelink 101.Longitudinal movement ofl cam plate 102 upon operation .0f ribbon shiftkey lever 101, willmove shiftablevlinks 100 and 101 longitudinally solas to shorten the power arms of vibrating' levers 99 and 99. The powerarm of vibrating lever 99 is un'der control of a crank 111 carried on ashaft 112 which is rocked by a connecting rod 111. Similarly the powerarm of vibrating lever 99 is controlled by crank 115 carried on a shaft116 which is rocked lby the connecting rod 117.

. Referring to Figs. 9, 10 and 11, it will. be observed thatconnectingrods 114 and 117 fare actuated for' longitudinal reciprocationby movement of a sleeve 118, to which connecting rods 114 and 117 y areconnectedre- :spectivelyi by crank arms 119 and 120. This sleeve-118 isarranged'to be rocked on its axis 1by virtue of its connection throughcrankv arm 121, and link 122 with print control lever X49 ofthencomputing machine.

VBy virtue of the connections as describedin my copending applicationabove referred to, this `print control lever X49- governs the the springX52, is rocked by the influence' of said spring at every printingoperation of the computing machine. It will be seen that in this rockingoperation the lower end of lever X4 is swung rearwardly, or to the left,as illustrated in Fig. 10. At such times when no printing is to beeffected fronr the computing machinenumber types, as when items aresimply accumulated and not listed, this lever rremainsstationary. As aconsequence, upon every printing operation of the computing mechanism,sleeve 118 will be rocked', and, by virtue of the operating connectionsjust above described, both of the vibrating guides 96 will be raised tocarry the ribbon -to the printing line to receive the impact of thetype. This raising of a considerably longer extent of the ribbon isnecessary when the computing 4machine printing mechanism is operated, byvirtue of the fact that the printing members of the computing machinecover a considerable extent transversely, the extent depending, ofcourse, upon the number of denominational orders for which the machineis equipped. In the operation of the typewriting mechanism, however,raising of this considerable extent of ribbon is not necessary, as but asingle letter is printed at a time, nor is the raising of thisconsiderable extent of ribbon desirable inthe operation of thetypewriter, for the reasonv that it Ashaft 116 is effective only uponvibrating lever 99', only the right hand vibrating guide 96 will beraised upon operation of Ythe typewriter printing mechanism. As will beseenin Fig.` 9, the printing point of the 'typewritingmechanism isadjacent to the lright hand vibrating guide 96, so that the movement ofthe single guide elevates enough of the ribbon to effect the printingfrom the type bar.

I have explained above how the power arms of levers 99 and 99 areshortened by the shifting of cam plate 102. Inasmuch as the arc ofmovement of cranks 111 and 115 is always the same, a shortening of thepower arms on the vibrating levers will result in their weight armsbeing given an increased extent of movement. Hence, when printing fromthe upper zone of a bichrome ribbon, the levers 99 and 99 will be in thepositions illustrated in Fig. 8, whereas when it is desired to printfrom the lower color Zone of a bichrome ribbon, said levers will beshifted outwardly as above described and the vibrating guides 96, as aconsequence, will be given a greater extent of vertical movement so asto bring the lower Zone of the ribbon over the printing line in thevibrating operation.

Referring now to Figs. 9 to 14 inclusive, I will describe the ribbonfeeding mechanism. Y

Journaled in brackets 130 is a ribbon feeding shaft 131 having looselyjournaled on each end thereof a clutch pinion 132. Each clutch pinionmeshes with a beveled pinion 134 on its associated vertical shaft 90.Slidably mounted on shaft 131, but held vfor rotation therewith, are theshiftable clutch members 135, one arranged for coperation with each ofthe clutch pinions 132. These shiftable clutch members are controlled intheir movement longitudinally of the shaft by clutch levers 136 piv'otedat 136a and linked together by a rod 137 so that they are maintained inparallelism. One of the clutch levers 136 has an extension 138 with atoothed extremity arranged for coperation with the spring pressedvdetent 139. Upon shaft 131 are carried similar ratchet wheels 140 and140. With the former ratchet wheel coperates a spring pressed pallet141, and with the latter a spring pressed pallet 142. The former iscarried on an arm 144 which is oscillated by a shaft 145 mounted at theleft side ofthe machine. This shaft is rockedfrom the lefthand verticalrock shaft 68 through the instrumentality of an arm 146 mounted on theshaft 68 and connected to an arm 147 on shaft 145 by means of a link148. Consequently, whenever shaft 68 is rock'ed, as occurs upon anyactuation of the universal bar, shaft 145 will be rocked, and pallet 141will be reciprocated to rotate ratchet wheel 140, the power for therotation of said ratchet wheel being derived from the carriage spring,and from the restoration under gravity of the several articulatedoperating parts. Pallet 142 is carried on a rocking arm 149 which isswung by a connecting crank 150 which is mounted on sleeve 118 andoscillated upon rotation thereof. Hence whenever4 sleeve 118 is rotated,as is effected by the printing operation of the calculating machine,pallet 142 will be reciprocated to rotate ratchet wheel 140,. Whetheractuated through ratchet wheel 140 or by ratchet wheel 140', shaft'131will always be rotated in the same direction, and willy carry with itwhichever of clutch pinions 132 may be clutched to it. Whichever clutchpinion is clutched to shaft-131 will drive its associated beveled pinion134 and ribbon shaft 90 to wind the ribbon on the reel supported on thatshaft. The other clutch pinion being free on shaft 131, will leave itsassociated driven shaft 90 free to rotate te permit the unwinding of theribbon from the reel supported thereon.

When the ribbon becomes exhausted from one reel, it is desirable, ofcourse, to have automatic arrangement for reversing the direction offeed so that the ribbon may be fed from the full spool to the emptyspool. By reference to Fig. 14, it will be observed that the ribbonspool has a drum portion 151 having a part of its curved wall in theform of a gate 152 which is pivoted at 152% and urged toward openposition by spring 154. The free end of this gate carries a downwardlyprojecting stud 155 whiclroperates through an arcuate slot 156 in thelower disk of the spool. The end ofthe ribbon is attached to astationary portion of the drum, and when any of the ribbon is wound onthe ,drum 151, the gate 152 will be held in its closed position thereby.However, when the ribbon is unwound from the drum 151 so as to leave thegate 152 unrestrained, it will swing outwardly under the influence ofthe spring 154 as described. Terminating under the lower disk of theribbon spool is a tripping shaft 157 which is journaled at its lower endon the frame 130. At its upper extremity this shaft carries a trippingcam piece 158 lying below the ribbon spool and having a camming edge 159disposed eccentrically relative to the ribbon shaft 90. Vhen the gate152 is in its closed position, the lower end of pin 155 will be revolvedshort of the cam piece 158. vWhen, however, the gate is opened and theradial distance of pin 155 from shaft 90 is increased, said pin 155 willbe in position to ride over the caimning edge 159. In so doing, it willswing the cam piece 158 inwardly,vrocking the shaft 157. At, its lowerextremity, shaft 157 carries a detent arm 160 which coperates with aswinging wedge piece 161 flexibly j ournaled on the frame 130. As bestseen inAFig. 13, they detent arm 16() overlies a rearportion o1 thewedge piece 161 so as to hold its forward end elevated against influenceof spring 162. The forward end of the wedge piece 161 is arranged forcoperation with the laterally extending` arm 136b of the clutch lever136 and also with the teeth 164 of a cam member 165 carried by shaft 131which operates adjacent to the clutch lever 136. The spacialvrelationship of cam 165 and Clutch lever 136 is such that when theclutch is Vengaged the teeth 164 andthe lateral projection 136b will beseparated by a distance sufficient to accommodate the widthV of wedgepiece 161 between the high points of the teeth Vand the end of extension136"- AWhen, however, the clutch members are disengaged, the lateral

